This dataset contains data recovered from the offline archives of National Space Science Data Center (NSSDC). This dataset has been placed online by the Space Physics Data Facility (SPDF) to facilitate science assessment and access to the data and available documentation as we presently have these, but these data have NOT BEEN REVIEWED in any detail by SPDF for sufficiency or accuracy of the available dataset description or for data quality. These data may be highly encoded and require a substantial research effort to extract. Binary formats that appear may include so-called .tap files that require specialized software to unpack. Some files and/or the information in files may appear multiple times and may not always be consistent in such cases. Users are welcome to contact SPDF at gsfc-spdf-support@lists.nasa.gov for further discussion, but users should expect they will need to exercise great care and some effort in the use and interpretation of these data as served.